Pump.



E. MARTIN.

PUMP.

APPLIoATIoN FILED rBB.2a, 190s.

Patented Jan.2,1912.

2 SHEETS-SHEET l.

COLUMBIA PLANOGRAPM :0wAsHxNa-roN. DA n..

E. MARTIN.

PUMP. AP'PLIOATION FILED FEB. 2a, 190s.

Patented J an. 2, 1912.

2 SHEETS-SHEET 2.

||l|IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIII oivirnp fsrnrns PATENTorrion.

EUGENE MARTIN, 0F SOLDIERS GROVE, WISCONSIN.

PUMP.

Application led February 28, 1908.

To all whom it may concern:

Be it known that I, EUGENE MARTIN, a citizen of the United States,residing at Soldiers Grove, in the county of Crawford, State ofVisconsin, have invented certain new anduseful Improvements in Pumps;and I do hereby declare the following to be a full, clear, and eXactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

rIhe present invention has reference to pumps, and it aims, generally,to provide an exceedingly simple, inexpensive and efficient structure ofthat class including a valved flow pipe which is offset from the suctioncylinder and the pump barrel 1n which the pump rod is movable, thelatter having connected thereto one end of a retractile coil springwhose other end is connected to the pump-head located upon the' top ofthe barrel, so as to assist the upward movement of the pump rod and thuspermit the operation of the pump with an expenditure of but littlepower.

The invention further resides in the particular construction of the pumpbarrel and its head, and in the particular manner in which theabove-mentioned spring is attached to the latter and to the pump rod.

These and other features which compose the subject matter of this casewill be readily understood from a consideration of the followingdetailed description, and their preferred embodiment is illustrated inthe accompanying drawings, in which corresponding parts are designatedby similar reference numerals in the views.

Of the said drawings: Figure 1 is an elevation of the improved pump.Fig. 2 is a vertical section therethrough. Fig. 8 is a detail view ofthe piston carried by lthe pump rod. Fig. 4 isa view similar to Fig. 2,showing the parts in opposite positions. Fig. 5 is an enlarged detailsection through the upper portion of the pump barrel and the head formedthereon.

Referring more particularly to the drawings, 5 designates the pumpbarrel, and 6 the head formed upon the upper end thereof. The barrel isprovided upon opposite sides with the usual discharge spout 7 and with apair of laterally-projecting spaced ears 8, between which latter ispivoted at its lower end a rocking link 9 which passes through a lateralguide 10 formed upon the Specification of Letters Patent.

Patented Jan. 2, 1912.

serial No. 418,308.

barrel and has its upper end pivoted to the pump handle 11, the innerend of `said handle being bifurcated for the reception of the pump rod12 which is pivoted thereto. The upper end of the pump rod projectsthrough an opening in the top 13 of the head 6, which latter is in theform of a skeleton frame, as shown, comprising the top 13 above referredto and a series of four ribs 14 connect the same with the upper end ofthe barrel and are slightly bowed, the handle extending between the rearpair of ribs. rl`he lower end of the barrel has secured thereto, avertical pipe section 15 connected by a T-joint 16 with the upper end ofthe vertical flow-pipe 17, whose lower end is connected by a similarjoint 18 with a short pipe section 19 to which, in turn, the suctioncylinder 20 is attached, the flowpipe being thus offset from saidcylinder and from the pipe section 15 and the pump barrel, as isapparent.

The pump rod levtends through the pump barrel in the usual manner, andthrough the vertical arms of the T-joints 16 and 18 the cylinder 25 andthe suction cylinder 20, the lower end of which latter is provided witha check-valve 21. A piston head 22 is Vsecured on the lower end of thepump rod and is movable within the suction cylinder 20 as the pump rodis raised and lowered, said pist-on head being provided with a checkvalve 23. The vertical arm of the upper joint 16 has connected theretoby means of a short pipe section 24 a. cylinder 25, while that of thelower joint 18 is provided with a stufing-box 26, through which the pumprod likewise passes, the packing within the stuliing-box. forming awater-tight joint around the rod and causing the water drawn through thesuction cylinder and the pipe section19 to pass into the dow-pipe 17.This pipe is provided between its ends with a valve casing 27 in whichis disposed a .check-valve 28, said valve being raised from its seat 29by the force of the upwardlyflowing water, as hereinafter described.

The cylinder 25, above referred to, has slidable therewithin a piston30, which is likewise carried by the pump rod and is preferably providedwith peripheral packing rings, to prevent the passage of water betweenthe walls of the cylinder and the periphery of said piston. The lowerend of said cylinder may likewise be provided with a packing ring,.ifdesired.

ing the threaded bolt in one direction or the other.

In the operation of the pump, water will be drawn through the valve 21into the space below the piston 22, upon the up-stroke of the pistons,and the water above this piston will be raised through the flow pipe andthe valve 28 into the joint 16. As the cylinder 25 and the pipe section24 are filled with -water which is being raised by the piston 30, thewater from the flow-pipe will pass directly therefrom into the pipesection L5, from which it will be discharged through the spout 7. At theend of the 11p-stroke of the pistons, t-he pump is filled withwater fromthe valve 21 to thisspout. Upon the succeeding down-stroke, thepiston 22will descend through -the water in the cylinder 20, and as the pist-on30 de scends a volume of water above it will follow it down into thecylinder 25, which volume of water will be .forced into the pipe 15 onthe succeeding 11p-stroke. v

The upper end of the pump rod projects sufficiently far above the top ofthe pump head to permit its attachment to the pitman of a wind-mill ifdesired, but as this feature forms no part of the invention,illustration thereof is regarded as unnecessary.

On account of the construction of the cylinder 25 and piston 30 it willbe apparent that a pocket is produced in the upper end of the cylinderwhich is closed at its lower extremity by the piston 30. On account ofthe sealed construction of the bottom of the cylinder it will beapparent that when the pist-on moves toward the lower end thereof theair in that end will be compressed obviously preventing any leakagewithin the cylinder of the fluid which might run below the piston headand prevent its downward movement. The water or like fluid locatedwithin the pocket or trap serves to prime the valve plunger in' thesuction cylinder upon the movement of the pump rod.

`What is claimed is:

A pump comprising a barrel having an outlet and a pipe connecting withand eX- tending downwardly from said barrel, a cylinder at the lower endof said pipe, a suction cylinder below and spaced from the firstmentioned cylinder and having a valve atits lower end, a flow pipeestablishing connection between the said cylinders and discharging intothe rst named pipe at a point above the first named cylinder, said flowpipe having a downwardly closing check valve, a pump rod and solidpiston thereon operating in the first named cylin-l der and a valvedlpiston on said pump rod operating in said suction cylinder, said firstnamed cylinder and the piston therein cooperating to form a trap forwater from the flow pipe and to utilize t-he same when the pump isstarted in operation to prime the valve plunger in the suction cylinder.

In testimony whereof, I afx my signature, in presence of two witnesses.

EUGENE MARTIN. Witnesses:

STEPHEN W. SHAW, ENDsLEY VANCE.

Copies of this patent may be obtained for ve cents each, by addressingthe "Commissioner of Patents, Washington, D. C.

